340557 has 8 divisors (see below), whose sum is σ = 518976. Its totient is φ = 194592.

The previous prime is 340541. The next prime is 340559. The reversal of 340557 is 755043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 340557 - 2⁴ = 340541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8088 + ... + 8129.

It is an arithmetic number, because the mean of its divisors is an integer number (64872).

2³⁴⁰⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

340557 is a deficient number, since it is larger than the sum of its proper divisors (178419).

340557 is a wasteful number, since it uses less digits than its factorization.

340557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16227.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 340557 is about 583.5726175893. The cubic root of 340557 is about 69.8334133940.

The spelling of 340557 in words is "three hundred forty thousand, five hundred fifty-seven".